Tectonic plates

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Across
  1. 4. Harry Hess
  2. 6. center of the Earth
  3. 7. plastic-like layer of the Earth
  4. 9. solid outer layer
  5. 10. earthquakes
  6. 13. squeeze an object
  7. 14. thickest layer of the Earth
  8. 15. Alfred Wegner
  9. 16. strong,lower part of the mantle
  10. 17. only liquid layer of the planet
  11. 18. large pieces of the Earth's crust move and change shape
Down
  1. 1. a break in a body of rock
  2. 2. mountains, trenches, volcanoes
  3. 3. thinnest layer of the Earth
  4. 5. involve a reaction to an applied load
  5. 8. nature of somethings ingredients or constituents
  6. 10. a block of lithosphere
  7. 11. new seafloor
  8. 12. sinking of regions
  9. 19. inner most layer of the Earth